In the interests of experimentation, when I came across some fallen Davidson’s Plums recently, I picked them up and carried them home. As you do!
This is a rainforest tree, native to Queensland: Davidsonia Pruriens.
It’s narrow and tall and the fruit are surprisingly large (many native fruits are small by comparison with the European cultivated fruits they reminded colonists about).
There might be a way to get colour from these fruits. But the way I chose (cooking the fruit and applying to alum mordanted fibre) is not really one of them. The alum mordanted wool turned a pale tan–and this may be a generous interpretatio– and the alum mordanted silk became ever such a pastel shade of apricot.